Question

Upgrading an rc to rtm web api project

Default parameter binding for simple type parameters is now [FromUri]: In previous releases of ASP.NET Web API the default parameter binding for simple type parameters used model binding. The default parameter binding for simple type parameters is now [FromUri].

I believe is the change that is causing me greif.

Well now I’m not so sure. StrathWeb seems to make me thing it should just work as is.

Given this endpoint

   [HttpGet]
    public HttpResponseMessage Method(string a, string b)
    {
     ...
    }

I generate a url on the client using

@Url.RouteUrl("route", new { httproute = "", controller = "Controller", version = "1" })">

to get it to generate the url for this route.

routes.MapHttpRoute(
name: "route",
routeTemplate: "api/v{version}/{controller}/Method",
defaults: new
{
    action = "Method",
    controller = "Controller",
    version = "1"
});

It creates the url fine. The urls looks like

.../api/v1/Controller/Method?optional=z
.../api/v1/Controller/Method?a=x&b=y&optional=z

It throws a 404 when requested. If I remove the parameters a and b in the api controller then it enters the method just fine.

What is the correct way to make these bind?

Answer 1

if you need ‘a’ and ‘b’ to be optional, then you would need to make them optional parameters:

public HttpResponseMessage Method(string a = null, string b = null)